It is not possible to say that someone is Muslim if they did not utter the Shahaadatayn

Question

if someone who is born nonmuslim (christian ) he/she is honest and never commits major sins and he/she belives everybbody is right on their own religion but knows nothing about islam nobody told them about it and they die in this stage so where will they go on the day of judgement

Answer

Praise be to Allaah.

The person whose situation is described in
the question cannot be said to be a Muslim even if his attitude and
morals were good, because he did not utter the Shahaadatayn and did
not believe in Allaah as his Lord, Muhammad as his Prophet and Islam
as his religion. The belief that all religions on earth are correct
and that their followers are all following the truth is one of the gravest
falsehoods and one of the greatest examples of kufr. Allaah says (interpretation
of the meaning);

“…Say:
‘Are those who know equal to those who know not?’…”

[al-Zumar 39:9]

“And
not equal are the blind and those who see; nor are (equal) those who
believe (in the Oneness of Allaah
Islamic Monotheism), and do righteous good deeds, and those who do evil.
Little do you remember!

[Ghaafir 40:58]

“Say
(O Muhammad): ‘Who is the Lord of the heavens and the earth?’ Say: ‘(It
is) Allaah.’ Say: ‘Have you then taken (for worship) Awliyaa’ (protectors)
other than Him, such as have no power either for benefit or for harm
to themselves?’ Say: ‘Is the blind equal to the one who sees? Or darkness
equal to light?’”

[al-Ra’d 13:16]

“Say
(O Muhammad): ‘Not equal are Al-Khabeeth (all that is evil and
bad as regards things, deeds, beliefs, persons and foods) and At-Tayyib
(all that is good as regards things, deeds, beliefs, persons and foods)…’”

[al-Maa’idah 5:100]

“Not
alike are the blind (disbelievers in Islamic Monotheism) and the seeing
(believers in Islamic Monotheism).

Nor are (alike)
the living (i.e., the believers) and the dead (i.e., the disbelievers).
Verily, Allaah makes whom He wills to hear, but you cannot make hear
those who are in graves”

[Faatir 35:19-22]

With regard to the ultimate destiny
of the person referred to in the question, and whether he will be excused
for his ignorance or not, and what his situation will be on the Day
of Resurrection, we believe that his case rests with Allaah. A similar
question has already been answered – please refer to Question
# 2443And Allaah knows best.